1. Research Associate, Dept. of Civil Engineering, Univ. of Texas at Arlington, Box 19308, Arlington, TX 76019.
2. Distinguished Teaching Professor, Dept. of Civil Engineering, Univ. of Texas at Arlington, Arlington, TX 76019 (corresponding author).
3. Ph.D. Student, Institute of Geotechnical Engineering, Southeast Univ., Nanjing, Jiangsu 210096, China.
4. Director of Engineering and Operations Support, Tarrant Regional Water District, 800 East Northside Dr., Fort Worth, TX 76102.